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A prismatic compass and two others G
15 ivoreen or plastic scale rules and protractors G
A Silvester's Patent SALTER'S Spring Balance to weigh 200lbs G+
A Steindorff- type measuring microscope 60x magnification G+
An unusual 9" German silver proportional divider in orig fitted case F
A steel balance with brass pans by W&T AVERY in orig mahogany box and two part sets of scales and
A steel balance with brass pans by W&T AVERY in orig mahogany box and two part sets of scales and drawing instruments G
A rustic marking gauge and a pair of brass dividers G
A chemical balance by GRIFFIN & TATLOCK in glassed case G+
A brass cased three blade fleam by GREAVES G++
A cavelrymans mahogany sketching board marked Imperial Light Horse by LAWRENCE & MAYO with compass
A cavelrymans mahogany sketching board marked Imperial Light Horse by LAWRENCE & MAYO with compass and boxwood scale in canvas case G
An OTIS KING calculator No N0214 with scales Nos 414 and 423 in orig leather pouch G+